Similar to the feminine tampon, the masculine 'manpon' is used for the reduction of sweat between the cheeks of the buttocks, placed firmly between the cheeks in times of high pressure, stress, or sweat-causing situations

These new manpons work great! I never have to be embarrased at the gym again!

Man-pon: a tightly wound paper towel or toilet paper approximately 6 inches in length that is placed between the ass cheeks to prevent... leakage. Developed in the mid-90's in response to the use of "O-lean" vegetable oil substitute which caused anal leakage in many subjects. When "O-lean" was no longer found in food products, the Man-Pon was nearly eradicated from the shelves until recently with the emergence of "Alli" a supplement that is taken for weightloss which causes a person to bypass all fats through their GI tract, resulting in a drippy anus.

I have diarrhea and allergies... I should put in a Man-Pon to prevent any accidents from sneezing.